Fix type errors in tests and plugins

- Add type: ignore for monkey-patching Database.__init__ in conftest
- Fix CLI test to pass string "2" instead of integer to Click invoke
- Add type: ignore for optional sqlean import
- Fix add_geometry_column test to use "XY" instead of integer 2
- Add type: ignore for click.Context as context manager
- Add type: ignore for enable_fts test that intentionally omits argument
- Add type: ignore for sys._called_from_test dynamic attribute
- Fix rows_from_file test type error for intentional wrong argument
- Handle None from pm.get_hookcallers in plugins.py

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/test_cli_convert.py

@@ -535,7 +535,7 @@ def test_convert_where(test_db_and_path):
             "id = :id",
             "-p",
             "id",
-            2,
+            "2",
         ],
     )
     assert result.exit_code == 0, result.output
@@ -564,7 +564,7 @@ def test_convert_where_multi(fresh_db_and_path):
             "id = :id",
             "-p",
             "id",
-            2,
+            "2",
             "--multi",
         ],
     )